A bureaucrat in the Ministry of Health and Welfare is murdered. The wealthy detective Ippei Yasuda's line of investigation reveals Takeshi Tsumeyu, a psychiatrist who heals the worries of big names in the political and business world and works behind the scenes as a fixer in the shadows of politics and economics. Ippei buys up the raw materials for Moonsault to fight Tsumeu, who manipulates people at will with the devil's drug, Moonsault, but...